* {
  padding: 0;
  margin: 0;
}

body {
  width: 100%;
  height: 100vh;
}

.contrast {
  width: 100%;
  height: 100%;
  background-color: #000;
  position: relative;
  display: flex;
  justify-content: center;
  filter: contrast(15);
  animation: hueRot 5s linear infinite;
}

@keyframes hueRot {
  0% {
    filter: contrast(15) hue-rotate(0)
  }

  100% {
    filter: contrast(15) hue-rotate(360deg)
  }
}

.circle {
  width: 300px;
  height: 300px;
  margin-top: 30px;
  position: relative;
  filter: blur(8px);
  animation: circleRotate 5s linear infinite;
}

.circle::before {
  content: '';
  width: 200px;
  height: 200px;
  background-color: #00ff6f;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 42% 38% 62% 49%/45%;
}

.circle::after {
  content: '';
  width: 176px;
  height: 178px;
  background-color: #000000;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

@keyframes circleRotate {
  0% {
    transform: rotate(0);
  }

  100% {
    transform: rotate(360deg);
  }
}

.battery-number {
  position: absolute;
  left: 50%;
  top: 20%;
  transform: translate(-50%, -50%);
  color: #fff;
  z-index: 1;
  font-size: 18px;
  font-family: Arial, Helvetica, sans-serif;
}

.bubble-home {
  width: 150px;
  height: 50px;
  background-color: #00ff6f;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  border-radius: 150px 150px 0 0;
  filter: blur(8px);
}

.bubble {
  background-color: #00ff6f;
  border-radius: 50%;
  position: absolute;

  transform: translateX(-50%);
  bottom: 0;
  z-index: 10;
  animation: bubbleMove ease-in-out infinite;
  filter: blur(5px);
}

.bubble:nth-child(1) {
  width: 20px;
  height: 20px;
  left: 50%;
  animation-duration: 5s;
  animation-delay: 1s;
}

.bubble:nth-child(2) {
  width: 22px;
  height: 22px;
  left: 49%;
  animation-duration: 4s;
  animation-delay: 1.2s;
}


.bubble:nth-child(3) {
  width: 24px;
  height: 24px;
  left: 48%;
  animation-duration: 1.8s;
  animation-delay: 1.4s;
}

.bubble:nth-child(4) {
  width: 18px;
  height: 18px;
  left: 47%;
  animation-duration: 2s;
  animation-delay: 1.6s;
}

.bubble:nth-child(5) {
  width: 20px;
  height: 20px;
  left: 47.5%;
  animation-duration: 3.4s;
  animation-delay: 1.8s;
}

.bubble:nth-child(6) {
  width: 16px;
  height: 16px;
  left: 48%;
  animation-duration: 3.6s;
  animation-delay: 1.6s;
}

.bubble:nth-child(7) {
  width: 26px;
  height: 26px;
  left: 51%;
  animation-duration: 4s;
  animation-delay: 1.2s;
}

.bubble:nth-child(8) {
  width: 20px;
  height: 20px;
  left: 52%;
  animation-duration: 3.5s;
  animation-delay: 1.6s;
}

.bubble:nth-child(9) {
  width: 28px;
  height: 28px;
  left: 53%;
  animation-duration: 4s;
  animation-delay: 2s;
}

.bubble:nth-child(10) {
  width: 20px;
  height: 20px;
  left: 54%;
  animation-duration: 5s;
  animation-delay: 1s;
}

.bubble:nth-child(11) {
  width: 20px;
  height: 20px;
  left: 52.5%;
  animation-duration: 5s;
  animation-delay: 1s;
}

.bubble:nth-child(12) {
  width: 20px;
  height: 20px;
  left: 52%;
  animation-duration: 5s;
  animation-delay: 1s;
}


@keyframes bubbleMove {
  0% {
    bottom: 0;
  }

  100% {
    bottom: calc(100% - 280px);
  }
}